Combined seat and back cover for a child&#39;s toilet chair



FIG. 1 is a perspective view of a combined seat and back cover for a child's toilet chair showing my new design;

FIG. 2 is a bottom plan view of the seat cover portion thereof;

FIG. 3 is a rear elevational view of the back cover portion thereof; and

FIG. 4 is a bottom plan view of FIG. 3. 

The ornamental design for a combined seat and back cover for a child's toilet chair, as shown. 